The northern polar region of Tethys, seen in this Cassini flyby image, is a ponderously ancient surface.
Above the prominent peaked crater Telemachus are the remnants of a very old crater (at the 10 o´clock position relative to Telemachus) named Teiresias. The ancient impact site is so badly overprinted and eroded by impact weathering and degradation that all that remains is a circular pattern of hummocks that mark where the old crater rim existed.
Credit: CICLOPS |
